PUMP ASSEMBLY 9H2256 - Caterpillar

Illustration 1 g00327824
Synchronizing Lights Module (1) Synchronizing lights. (2) Synchronizing switch.The synchronizing lights module is optional. The synchronizing lights module is located on the instrument panel (right side).The synchronizing lights module is not used when the panel is equipped with an electronic governor.Synchronizing lights (SL) are used as an aid for paralleling the generators that are independent of the load. Two lights are in the module. Each light is connected to the side with the load of the generator output circuit breaker. The voltage of two phases are measured. The lights are used to indicate to the operator when the voltages are in-phase. Close the circuit breaker now. The generator is on the line with the other generators.Note: For a complete explanation on the procedure to parallel two units, make reference to the Operation And Maintenance Manual, SEBU6918, "SR4B Generators and Control Panels".Installation Of The Synchronizing Module
To avoid electrical shock and personal injury, shutdown all on-line gensets before installing or repairing the synchronizing module.
Note: For the connection of the synchronizing light module, see the Testing And Adjusting, "Schematic and Wiring Diagrams". Make an orderly shutdown of all generators connected to the system. Connect the wires of the synchronizing light module to the terminals, as shown below.
Connect wire L1 to terminal L1 of TS1 in the generator housing.
Wire L3 to terminal L3 of TS1 in the generator housing.
Wire T11 to terminal 2 of fuse F13 on the AC transformer box (ATB).
Wire T13 to terminal 2 of fuse F15 on the AC transformer box (ATB).The customer is responsible for providing the proper electrical material that is needed to connect L1 and L3. L1 and L3 connect to the side of the generator output circuit breaker with the load. See the Testing And Adjusting, "Schematics And Wiring Diagrams". Adjust the connection of the wires on the taps of the synchronizing resistors. Adjust the connection for the particular AC voltage for the generator to the requirements below. 208 ACV line to line ... taps E to D (1760Ohms) 240 ACV line to line ... taps E to C (2400Ohms) 300 ACV line to line ... taps E to B (5600Ohms) 380 ACV line to line ... taps E to B (5600Ohms) 400 ACV line to line ... taps E to B (5600Ohms) 416 ACV line to line ... taps E to A (7200Ohms) 480 ACV line to line ... taps E to A (7200Ohms)Note: Remove the synchronizing module cover for access to the resistor taps. Example - The following connection is for a generator with a line voltage of 400 volts. Connect wire T11 to tap B of SLR1. Also, connect wire T13 to tap B of SLR2. See the Testing And Adjusting, "Schematics And Wiring Diagrams".